SN64BCT25245DWRG4

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  SCBS060A − JUNE 1990 − REVISED DECEMBER 1993 • • • • • • • DW OR NT PACKAGE (TOP VIEW) State-of-the-Art BiCMOS Design Significantly Reduces ICCZ Designed to Facilitate Incident-Wave Switching for Line Impedances of 25 Ω or Greater Distributed VCC and GND Pins Minimize Noise Generated by the Simultaneous Switching of Outputs Data Flow-Through Pinout (All Inputs on Opposite Side From Outputs) High-Impedance State During Power Up and Power Down ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015 Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic 300-mil DIPs (NT) A1 GND A2 A3 GND A4 A5 GND A6 A7 GND A8 1 24 2 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 DIR B1 B2 VCC B3 B4 B5 B6 VCC B7 B8 OE description The SN64BCT25245 is a 25-Ω octal bus transceiver designed for asynchronous communication between data buses. It improves both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented transceivers. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic level at the direction-control (DIR) input. The output-enable (OE) input can disable the device so that both buses are effectively isolated. This transceiver is capable of sinking 188-mA IOL, which facilitates switching 25-Ω transmission lines on the incident wave. The distributed VCC and GND pins minimize switching noise for more reliable system operation. The outputs are in a high-impedance state during power up and power down while the supply voltage is less than approximately 3 V. The SN64BCT25245 is characterized for operation from − 40°C to 85°C and 0°C to 70°C. FUNCTION TABLE INPUTS OPERATION OE DIR L L B data to A bus L H A data to B bus H X Isolation Copyright  1993, Texas Instruments Incorporated      !"#   $"%&! '#( '"! !  $#!! $# )# #  #* "# '' +,( '"! $!#- '#  #!#&, !&"'# #-  && $##( • DALLAS, TEXAS 75265 • HOUSTON, TEXAS 77251−1443 POST OFFICE BOX 655303 POST OFFICE BOX 1443 3−1 
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  SCBS060A − JUNE 1990 − REVISED DECEMBER 1993 logic symbol† OE DIR A1 13 24 logic diagram (positive logic) G3 DIR 24 3EN1[BA] 3EN2[AB] 1 13 23 1 B1 A1 OE 1 2 A2 A3 A4 A5 A6 A7 A8 3 22 4 20 6 19 7 18 9 17 10 15 12 14 B2 23 B3 B1 B4 B5 B6 To Seven Other Channels B7 B8 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Input voltage range, VI (see Note 1): Control inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 5.5 V Voltage range applied to any output in the disabled or power-off state, VO . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Voltage range applied to any output in the high state, VO (B port) . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC Input clamp current, IIK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30 mA Current into any output in the low state, IO: A port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376 mA B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 mA Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 85°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C ‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. recommended operating conditions MIN NOM MAX 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IIK Low-level input voltage 0.8 V Input clamp current −18 mA IOH High-level output current IOL Low-level output current TA Operating free-air temperature 3−2 High-level input voltage 2 A port −80 −3 A port 188 B port 24 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • V B port −40 V 85 mA mA °C 
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  SCBS060A − JUNE 1990 − REVISED DECEMBER 1993 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH VOL TEST CONDITIONS MIN TYP† VCC = 4.5 V, VCC = 4.75 V, II = −18 mA IOH = − 3 mA 2.7 B port VCC = 4.5 V, VCC = 4.5 V, IOH = − 80 mA IOH = − 3 mA 2.4 VCC = 4.5 V IOL = 94 mA IOL = 188 mA 0.42 A port B port VCC = 4.5 V, IOL = 24 mA VO = 2.7 V 0.35 A port VCC = 0 to 2.3 V (power up) IOZ VCC = 1.8 V to 0 (power down) VO = 0.5 V VO = 2.7 V VO = 0.5 V IIH‡ IIL‡ IOS§ DIR and OE V OE at 0.8 V OE at 0.8 V ICCZ Ci 0.5 70 µA −0.6 mA 70 µA −0.6 mA 0.25 VI = 5.5 V VCC = 5.5 V, VI = 2.7 V 20 VCC = 5.5 V, VI = 0.5 V −0.6 mA VCC = 5.5 V, VO = 0 −150 mA 0.1 70 mA A µA A and B ports DIR and OE B port¶ −60 B to A port VCC = 5.5 V B to A port VCC = 5.5 V OE and DIR VCC = 5.5 V VCC = 5.5 V, VI = 2.5 V to 0.5 V A port Cio V VCC = 0 to 5.5 V, A to B port ICCH 0.55 0.7 A to B port ICCL V 3.3 A and B ports DIR and OE UNIT −1.2 2 A and B ports II MAX B port 48 60 95 125 36 46 63 80 12 16 8 mA mA mA pF 18 VCC = 5.5 V, VI = 2.5 V to 0.5 V 8 pF † All typical values are at VCC = 5 V, TA = 25°C. ‡ For I/O ports, the parameters IIH and IIL include the off-state outputs current. § Not more than one output should be tested at a time, and the duration of the test should not exceed one second. ¶ Testing for this parameter on the A port is not recommended. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 3−3 
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  SCBS060A − JUNE 1990 − REVISED DECEMBER 1993 switching characteristics (see Note 2) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL A B tPLH tPHL B A tPZH tPZL OE A tPHZ tPLZ OE A tPZH tPZL OE B tPHZ tPLZ OE B VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω VCC = 5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = 25°C TA = − 40°C to 85°C MIN TYP MAX MIN MAX MIN MAX 1.2 3.3 5.1 1.2 5.7 1.2 5.7 1.9 4.3 6.7 1.9 7.3 1.9 7.2 1.2 3.3 4.8 1.2 5.5 1.2 5.5 2.1 4 5.6 2.1 6.3 2.1 6.2 3.7 6.3 8.4 3.7 9.7 3.7 9.6 4.5 7.4 9.2 4.5 10.6 4.5 10.3 1.8 3.7 5.5 1.8 6.2 1.8 6.2 3.3 5.1 7.2 3.3 8.8 3.3 8.3 3.4 5.7 7.9 3.4 8.9 3.4 8.9 4.3 6.6 8.7 4.3 9.9 4.3 9.7 2.7 4.5 6.3 2.7 6.9 2.7 6.9 1.7 4.5 6.8 1.7 7.7 1.7 7.5 NOTE 2: Load circuits and voltage waveforms are shown in Section 1. 3−4 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • UNIT TA = 0°C to 70°C ns ns ns ns ns ns PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) SN64BCT25245DW ACTIVE SOIC DW 24 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 6BCT25245 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of